Apparatus for separating solids from liquid solutions.



L. C. TRENT.

APPARATUS FOR SEPARATING SOLIDS FROM LIQUID SOLUTIONS.

APPLICATION FILED JUNE 12, 1912.

Patented Mar. 18, 1913.

2 SHEETS-SHEET 1.

L. C. TRENT.

APPARATUS FOR SEPARATING SOLIDS PROM LIQUID SOLUTIONS.

APPLICATION FILED JUNI'. 12, 1912 Patented Mar. 18, 1913.

2 SHEETS-SHEET 2.

LAMARTINE c. Tanner; or Losanennns, oaLtronNra.

APPARATUS FOR SEPARATING SOLIDS FROM LIQUID SOLUTIONS.

l tion flowing from the gas scrubbers of gas y works, the separation ofthe heavier 'or coarser solids from the liquid flow from a stamp mill,the removal of the slimes from cyanid solutions, and, in fact, theapparatus is applicable foi-.the removal of the solids from liquid andsemi-liquids generally; the object of the invention being theconstruction of an apparatus which will permit of the work of separatingthe solids from the solution to be treated to be carried out as acontinuous operation, i. e. a continuous intiowing stream of the liquidfrom which the solids are to be separated may be maintainedthroughoutthe work of separation, the centrifugal of which is at alltimes submerged within the liquid or solution under treatment and primedautomatically for operation, the construction of thecentrifugal beingsuch that the supply of liquid thereto is through an under feed and inproportionA to the removal of the solids therefrom and the discharge ofthe liquid.

To comprehend the invention, reference should be had to the accompanyingsheet of drawings, whereinw Figure 1 is a vertical-sectional View of theapparatus. Fig. Q is a sectional plan view taken on line F ig. 1 of thedrawings. Fig. 3 is a detail view of one of the controlled outlets forthe vacuum chamber of the centrifugal. Fig. at is a Sectional view takenon line g/-g/, Fig. 1.

ln the drawings, the numeral 1 is used to indicate any suitable form ofa receiving vessel, preferably cylindrical in construction for thereception of the material to be treated, and into which the liquid orsemiliquid material from which the solids are to be separated isdelivered by the feed or sup- Specification of Letters Patent.

Application led June l2, 1912.

Patented Mar. 18, 1913 serial No. 703,209.-

ply runway 2, the said receiving vessel being an open top one.

Within the receiving vessel l is rigidly sustained, in any suitable`vmanner, a conical .casing or housing 8, the interior of which forms apressure chamber .4 forthe reception of the solids separated from theliquid under treatment, the said casing 3 being held a slight distanceabove the bottom of the vessel 1 and from the same leads a dischargepipe 5 extended beyond the vessel 1 for conveying the separated solidsto any suitable place of deposit.-

lVithin the conical casing 3 works the centrifugal member 6, theinterior of which is sub-divided by a horizontal diaphragm 7 of slightlyless diameter than the interior of the centrifugal member 6 in order toprovide a contracted annular passage-way 8 for the up-iow of the liquidfrom which the solids have been separated, and the said centrifugalmember 6 is provided with a series of contracted peripheral outlets 9through which the solids 4are forced into the chamber 4 of t-he casing3. The said centrifugal member is supported by a hollow drive shaft 10,the extension 10 of which is open at its lower end and extends within asuitable bearing l1 upwardly projected from the depressed centralport-ion 12 of the bottom of the receiving vessel 1, and to the saiddownwardly extended portionor extension 10 of the hollow drive shaft 10the agitating blades 13 are secured for maintaining the material to betreated in an agitated condition as drawn into the lower open end of thesaid extension 10,l which said extension constitutes a feed supply forthe centrifugal mem er 6.

The hollowfdrive lshaft .10 and its feed eX- tension 10 extendrespectively throughA launder 16 surrounding the vsame and from whichthe liquid escapes through the outlet runway 16 to a suitable place ofdeposit. The said hollow disk 15 constitutes a vacuum pump'finto thevacuum chamber 15a of which the clear or free'liquid is drawn from thecentritugal member 6 through the tubular drive shatt 10. its a` matterot tact, the member il, sha'tt l0 and the extension l0 thereoilftogether with the member l5 may be said to constitute the centrifugalot'the apparatus, the member 6 oli which may be treated as anaccumulator tor the material to be treated.

From the dislr l5 and centrally thereof projects a. short shaft l?carrying a drive pulley 1T, the shaft 17 working in an overhead bearing1S, and rotation is imparted to the shaft 1'? and the rotatable partscon nected thereto by means ot a drive belt 18 Working over the beltpulley li", the said belt 18 being driven trom anyT suitable source ofpower. lt ivill he understood that any other suitable and Well knowntorni of power transmitting mechanism may be employ/ed 'for impartingrotariY mot-ion to the shaft l?, although preference is given to thetorni ot drive mechanism shown and described owing to the simplicitzt7thereot,

'Under working conditions the material to be treated is delivered intothe receiving vessel l until it. reaches a depth therein indicated byarrow (u which entirelv sul)- nierges the rotatable Yteatures ot theappara tus, the pressure oit' the material as ted into the receiringvessel l, causing an uptloiv therco'lf into the centrifugal until itreaches a level therein equal to the lerel of the material Within thereceiving 1vessel l, so that the centrifugal at all times primed withsolution tor treatment to a point. equal to the lerel within thestationary receiving Yessel l. The object is to keep the centrit'ugalprimed to a height `Within the racuum chamber l5 equal to the level otthe material Within the receiving vessel l indicated by the arrow a, andin case the level of the material tor treatment falls below the launder16, then the ralre 1l), which is controlled in its morei'neut by thefloat i9 will automatically open and permit a quantiti7 ot the treatedliquid discharging into the launder 1G to tlou' into the receivingVessel l until the material therein has been raised to its proper level.During the Working ot the apparatus the centrifugal is driven at a highrate ot speed, the tionY ol the material through the accumulator t3being retarded b r the diaphragm T therein, and under the influence orthe generated centri'tugal strains the material is directed outwardlytoward the contracted peripheral outlets 9, through which the solidscontained Within the liquid solution are gradrullli7 torced and escapeunder pressure into the chamber l ot' the fixed conical asing or housing3, being gradually discharged therefrom through the discharge outletpipe 5 to a suitable place or deposit beyond the receiving vessel l,While the liquid troni which the solids have been removed escape throughthe annular p a ssage-rva if tl and tlow upwardly through the hollowshaft 10 into the -chamlcer l5 ot the vacuum pump being drawn therein brreason ot the high rotative speed at which the centrifugal is driven.The clear liquid flowing into the chamber la? of the racuun'i pump theperipheral outlets l5 thereot, the llow from which outlets is controlledby the regulating valves b, so that the muttlouY trom the said pump maybe readilj,7 proportioned to the outllow ot the separated solids.

The liquid to loe treated is automatically ldrawn into the centrifugalthrough the submerged open end of the extension 10, the feed being anunder one and the indow ot the solution into the receiving Vessel lproportioned to the outtlow ot the solids and the clear liquid trom thecentrifugal, so that the intlon7 ot liquid into the vessel l ottsets theoutow ot the solids and treated liquid, and the intent is that. theintloW ot' the solution to be treated shall be continuous one throughoutthe Working ot the apparatus.

llvhen the machine is at rest, the pressure ot the liquid Within thereceiving vessel is suliicient to maintain the material Within thecentrifugal at a level equal to that within the Vessel l, so that thecentrifugal is at all times primed tor instant operation tot theseparat-ion ot the solids from the liquid. During the Working ot theapparatus the agitator blades 13 secured to the extension 10 ot thecentrifugal maintain the material in a condition ot agitation andthoroughl)7 inter-mixed for an inteed into the centrifugal.

the use ot the described invention, a clean mechanica-l separation olfthe solids from the liquids is obtained, the discharge oli' the solidsand the clear liquid, at different points, being proportioned to theinflow ot' the liquid to be treated, the apparatus being capable othandling a large tonnage per day, and the tloW of the liquid to betreated and the outtlow ot the solids and treated liquid being acontinuous one.

'llhe apparatus is especially designed and intended 'for a closeworkingttor the separation and remo 'al ot exceedinglqtT line solids trom theliquids generally. in order that the liquid treated may be dischargedclear liquid, i. '6. liquid treed of its solids.

'l he essential. features ot the apparatus reside in delivering thematerial or liquid to be treated into a sulmoeiged centrifugal tram anopen under teed, the proportioning of the outtlowing treated liquid tothe intlowing liquid :tor treatment, and in the provision made tor acontinuous treatment otl the material. Y

l/llhen the inflow of material to be treated is cut ott, the centrifugalcontinues its Working action until all solids have been removed tromthematerial contained Within the rcl5 is discharged therefrom through Y.

noname it is required that a uniform supply of.

liquid be delivered thereto in order to main- .tain the efficiency ofthe vacuum pump. ln-

asmuch as the iioat 19 operates to open the hinged valve 19 within thelaunder 16 on the liquid level falling below the bottom of the saidlaunder 16,the clear liquid delivered therein from the vacuum pump 15will flow back into the receiving vessel 1 to resupply liquid to thematerial therein to prevent the undue thickening thereof, therebymaintaining the liquid consistency of the material until finallydisposed of and withdrawing the remaining solids from the receivingvessel 1.

Having thus described the invention what is claimed as new and desiredto be protected by Letters Patent is- 1.y An apparatus for separatingsolids from liquids, the same comprising a stationary receiving vesselfor the liquid to be treated, a casing or housing xed within the saidvessel and provided with a discharge outlet extended beyond the saidvessel, a centrifugal mounted therein and consist-ing of an accumulatorprovided with peripheral outlets rotatably held within the xed casing orhousing, an open bottomed tubular feed extension projected beyond thesame for delivering material from the vessel into the accumulator, adiaphragm within the accumulator, `a hollow shaft for receiving thetreated liquid from within the accumulator, and a vacuum pump providedwith a controlled outlet for receiving the treated liquid from saidshaft, and means for imparting rotation to the said centrifugal.

2. An apparatus for separating solids from liquids, the same comprisinga stationary receiving vessel for the liquid to be treated, a casing orhousing fixed within the said vessel and outlet extended eyond the saidvessel, a centrifugal mounted therein and consistin of an accumulatorprovided with periphera outlets rotatably held within the fixed casingor housing, an open bottomed tubular feed extension projected beyond thesame for delivering material from the vessel into theaccumulator, adiaphragm within the accumulator, a hollow shaft for receiving thetreated liquid from within the accumulator, and a vacuum pump providedwith a controlled outlet for receiving the treated liquid from saidshaft, a launder surrounding said vacuum ump for receiving the liquiddischarged t erefrom and conveying the same to a suitable place ofdeposit, and means for imparting rotation to the said centrifugal.

3. An apparatus for separating solids from liquids, the same comprisinga stationary receiving vessel for the liquid to betreated, a casing orhousing fixed within the rovided with a discharge said vessel and outletextended yond the said vessel, a centrifugal mounted therein andconsisting of an accumulator provided with peripheral outlets rotatablyheld within the lined casing or housing, an open bottomed. tubular feedextension projected beyond the same for delivering material from thevessel into the accumulator, a diaphragm within the accumulator, ahollow shaft for receiving the treated liquid from within ytheaccumulator, and a vacuum pump provided with a controlled outlet forreceiving the treated liquid from said shaft, a launder surroundin saidvacuum pum for receiving the liquid povided with a discharge"-discharged there om and conveying thev same to a suitable place ofdeposit, a valve within said launder, means for controlling the movementof said valve for permitting a iow of liquid-therefrom into thereceiving vessel on the level of the liquid therein i lfalling beyond agiven point, and means for lmparting rotation to the said centrifu al.

4. An 'apparatus for separating soids from liquids, the same comprisinga stationary receiving vessel for the liquid to be treated, a casing lorhousing fixed within the said vessel and provided with a dischargeoutletvextended beyond the said vessel, a centrifugal mounted thereinand consisting of an accumulator provided with peripheral f outletsrotatably held within the fixed casing or housing, an open bottomedtubular feed extension projected beyond the same for delivering materialfrom the vess l into the accumulator, a diaphragm within he accumulator,a hollow shaft for receiving the treated liquid from within theaccumulator, and a vacuum pump provided with a controlled outlet forreceiving the treated liquid from said shaft, a means for impartingrotation to the said centrifugal, and agitating means carried by thefeed extension for the accumulator for maintaining the liquid drawntherein in a condition of agitation.

5. ln an apparatus for separating solids from solutions, the samecomprising a stationary vessel for the liquid to be treated, acentrifugal mounted therein and provided with an under feed for drawingtherein the liquid material to be treated, peripheral outletsl throughwhich the solids are ejected, means for receiving the solids andconveying the same to a place of deposit beyond the stationary vessel,and vacuum creating means for withdrawing the separated liquid from thecentrifugal and delivering the same to a suitable place of deposit. l

6. 1in an apparatus for separating solids from liquid material, the samecomprising a receiving vessel for the liquid to be treated, acentrifugal mounted therein and provided with peripheral outlets for thedischarge of solids therefrom, means for delivering material to betreated from the said vesse int@ tha ensuga thmugh Uma Ymt- Ein vstimonyWhemo? "l hm@ sign@ my' tom. therw, u dmphmgm within the mimma to thispecemiun in the Mmmm@ of *LG rfugaL a, easing pvdedhwwzhd @in @mt iw@subsibmg wmesses.. u

or recevn the soli s dis@ aw@ mm das n centrfugzmhgwnd Vacuum clal?lua-@mls foi" LAMRTINE C' TRM'NT withdrawing the separated iquld from heTWitnesses:

centrifugal rm delveling the same io' a N. A; Aomm,

suitable place of deposit. HARRY A.. TOT'JLEN.

